( 4 - 8 i ) + ( 7 + 5 i
Evaluate
11-3i
Real Part
11
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4+7+\left(-8+5\right)i
Combine the real and imaginary parts in numbers 4-8i and 7+5i.
11-3i
Add 4 to 7. Add -8 to 5.
Re(4+7+\left(-8+5\right)i)
Combine the real and imaginary parts in numbers 4-8i and 7+5i.
Re(11-3i)
Add 4 to 7. Add -8 to 5.
11
The real part of 11-3i is 11.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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